diff options
| author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2025-03-26 09:29:51 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 11:11:35 +0100 |
| commit | a1a63a270e438af6a108cc4faac632fae237e8f7 (patch) | |
| tree | 4d29b2ebac0de547db83f556a336ac07f2a00760 | |
| parent | f28f1f578cd810779d01999c60618cda14c281dd (diff) | |
watchdog: da9052_wdt: respect TWDMIN
[ Upstream commit 325f510fcd9cda5a44bcb662b74ba4e3dabaca10 ]
We have to wait at least the minimium time for the watchdog window
(TWDMIN) before writings to the wdt register after the
watchdog is activated.
Otherwise the chip will assert TWD_ERROR and power down to reset mode.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250326-da9052-fixes-v3-4-a38a560fef0e@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/watchdog/da9052_wdt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c index d708c091bf1b..180526220d8c 100644 --- a/drivers/watchdog/da9052_wdt.c +++ b/drivers/watchdog/da9052_wdt.c @@ -164,6 +164,7 @@ static int da9052_wdt_probe(struct platform_device *pdev) da9052_wdt = &driver_data->wdt; da9052_wdt->timeout = DA9052_DEF_TIMEOUT; + da9052_wdt->min_hw_heartbeat_ms = DA9052_TWDMIN; da9052_wdt->info = &da9052_wdt_info; da9052_wdt->ops = &da9052_wdt_ops; da9052_wdt->parent = dev; |